Bosch Daredevil (DLSB1003) Extended Length Spade Bits, 3/8-Inch x 16 Inches - 5 Pc Features a full-cone threaded tip for fast and effortless drilling Contoured paddle for fast chip removal Hex shank power groove to reduce slippage Spur and reamer tips for cleaner holes Provides a cleaner hole quality with reduced breakout